Increasing Rice Grain Yield Under Abiotic Stresses: Mutagenesis, Genomics and Transgenic Approaches

Raina, Aamir; Khan, Samiullah; Sahu, Parmeshwar K.; Sao, Richa

doi:10.1007/978-981-15-4120-9_31

Cited by 21 publications

(4 citation statements)

References 148 publications

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“…In indirect interaction, gamma rays interact with water molecules and lead to the formation of highly reactive free radicals in a process called radiolysis of water. These free radicals then interact with the DNA and lead to several types of mutations such as substitution, base alterations, base deletions, chromosomal abnormalities and DNA breaks (18)(19)(20). The photosynthetic apparatus in plants are reported to be most sensitive part to mutagen induced alterations (21).…”

Section: Introductionmentioning

confidence: 99%

Effects of gamma radiations on morphological and physiological traits of finger millet (Eleusine coracana (L.) Gaertn.)

et al. 2021

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The present study was carried out to analyse the effect of gamma radiation on morpho-physiological parameters of seven days old M1 seedlings of Eleusine coracana (L.) Gaertn. (finger millet). The finger millet seeds were irradiated with different doses of viz., 100 Gy, 200 Gy, 300 Gy, 400 Gy, 500 Gy, 600 Gy, 700 Gy, 800 Gy, 900 Gy and 1000 Gy of gamma ray. Higher doses of gamma rays induced substantial reduction in mean performance of morphological and physiological traits. However, lower doses showed stimulatory effects on morphological and physiological traits. The results revealed a progressive decrease in chlorophyll fluorescence with increasing dose of gamma irradiation. Among all the mutagen doses used, 600 Gy gamma irradiated seeds showed enhanced mean performance of morphological and physiological traits in finger millet. Hence 600 Gy gamma rays may be employed in other crop species to improve the agro-economic traits

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Section: Introductionmentioning

confidence: 99%

Effects of gamma radiations on morphological and physiological traits of finger millet (Eleusine coracana (L.) Gaertn.)

et al. 2021

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“…Induced mutagenesis is an effective method for improving agronomic traits and genetic variability of important crops such as cowpea (27,28) lentil (29,30) faba bean (31,32), chickpea (33,34) urd bean (35,36), bean (37), rice (38,39) black cumin (40,41), fenugreek (42), and finger millet (43). In the present study on finger millet (Paiyur-2), all the studied morphological and quantitative traits increased in mutagenized population treated with 400 Gy to 600 Gy doses.…”

Section: Discussionmentioning

confidence: 99%

Gamma ray induced positive alterations in morphogenetic and yield attributing traits of finger millet (Eleusine coracana (L.) Gaertn.) in M2 generation

Latha

Dhanarajan²,

Raina³

et al. 2022

Plant Sci. Today

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Induced mutagenesis by gamma rays plays a potent promising technology to be applied for crop improvement through breeding methods, especially in tiny florets possessing self- pollinated plants such as cereals. Finger millet (Eleusine coracana (L.) Gaertn.) which always ensured for valuable nutrients, as well as famine tolerant crop to supply food for global population throughout the year. The present study was performed to assess the spectrum and frequency of macro mutants induced by gamma radiations in M2 generation finger millet. The chlorophyll mutants viz., albina, xantha, chlorina and viridis and morphological mutants such as tall, dwarf, bushy, brittle stalk and broad leaf were recorded in different doses. Among the mutagen doses 600 Gy dose induced maximum increase in mean values and phenotypic and genotypic coefficients of variation for the plant height (cm), number of leaves per plant, leaf length (cm), number of tillers per plant, number of panicles per plant, panicle length, days to 50% flowering, and 1000 seeds weight. Except for panicle number/plant and 1000 seed weight, all traits showed high heritability in all doses. The results revealed a progressive decrease in mean values of quantitative traits with the increase in doses. The present study provides an idea about the optimum dose of gamma rays from a pool of doses that could be employed in future breeding programmes.

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“…Gamma-ray rice mutant improves pest resistance because gamma irradiation can help plants produce antimicrobial compounds, in rice plants by increase of phenolic acids [18]. Brown planthoppers attack rice by piercing and sucking sap from the rice stem causing direct damage and facilitating rapid transmission of plant diseases [19]. Prevention in brown planthopper feeding by increasing the hardness and thickness of the cell walls.…”

Section: Phenotype Of Black Ricementioning

confidence: 99%

Selection of M3 mutant strains from 200 gy gamma irradiation on Cempo Ireng

Nandariyah,

Sukaya,

Sutarno

et al. 2023

E3S Web Conf.

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Climate change is a serious issue that can disrupt crop production and pest resistance, especially in rice crops. To tackle climate change, plant breeding can be employed to develop new characteristics that are resistant, using physical mutagenesis like gamma irradiation. Cempo Ireng is one type of rice in Indonesia with plant properties such as tall plant, long harvesting periods, and susceptibility to brown planthopper attacks. The research aims to obtain information and select M3 mutant strains with properties of shorter plants, early harvesting, and brown planthopper resistance. The study was conducted from February-July 2022 in Klaten Regency, Central Java, Indonesia. The research material consisted of 3 mutant strains of black rice M3(GH8'), M3(GH51'), and M3(GH52'), with the control variety of Cempo Ireng. The experimental design used was a Randomized Complete Block Design without replication. Data were analyzed descriptively and used t-test, at a significance level of 5%. The results showed that M3 mutant black rice had better growth and yield components than the control plant. Brown planthopper attacks of M3 mutant strains decreased to 24% compared to the control.

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Increasing Rice Grain Yield Under Abiotic Stresses: Mutagenesis, Genomics and Transgenic Approaches

Cited by 21 publications

References 148 publications

Effects of gamma radiations on morphological and physiological traits of finger millet (Eleusine coracana (L.) Gaertn.)

Effects of gamma radiations on morphological and physiological traits of finger millet (Eleusine coracana (L.) Gaertn.)

Gamma ray induced positive alterations in morphogenetic and yield attributing traits of finger millet (Eleusine coracana (L.) Gaertn.) in M2 generation

Selection of M3 mutant strains from 200 gy gamma irradiation on Cempo Ireng

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